Shell beads found in a cave in Morocco are at least 142,000 years old. The archaeologists who found them say they're the earliest known evidence of a widespread form of human communication.

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Has the scent of freshly baked chocolate chip cookies ever taken you back to afternoons at your grandmother's house? Has an old song ever brought back memories of a first date? The ability to remember relationships between unrelated items (an odor and a location, a song and an event) is known as associative memory.

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Researchers have discovered an 'ultra-potent' monoclonal antibody against multiple variants of SARS-CoV-2, the virus responsible for COVID-19, including the delta variant.

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Having good room ventilation to dilute and disperse indoor air pollutants has long been recognized, and with the COVID-19 pandemic its importance has become all the more heightened. But new experiments show that certain circumstances will result in poor mixing of room air, meaning airborne contaminants may not be effectively dispersed and removed by building level ventilation.

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A new systematic review and meta-analysis shows we can lose around 1.4 per cent of our entire body fat through strength training alone, which is similar to how much we might lose through cardio or aerobics.

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Few studies have explored the effect of psychological stressors on behavior, and neurogenesis, in the context of depression. With the elucidation of a vicarious social defeat stress mouse model, scientists have successfully endeavored in connecting the dots between psychological stress and depression.

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Researchers have gained significant new insight into the genetic regulation of blood cells. They achieved this by analyzing a dataset that included more than 31,000 study participants, to date the largest dataset of its kind.

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Researchers have found that learning -- a universal feature of intelligence in living beings -- can be mimicked in synthetic matter, a discovery that in turn could inspire new algorithms for artificial intelligence (AI).

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Scientists have found that benzo(a)pyrene, traditionally measured to gauge risk of developing cancer from exposure to polycyclic aromatic hydrocarbons (PAHs), is a poor proxy for this type of cancer risk.

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Eating your daily calories within a consistent window of 8-10 hours is a powerful strategy to prevent and manage chronic diseases such as diabetes and heart disease, according to a new article.

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Many children, as well as adults, dislike Brassica vegetables, such as broccoli, cauliflower, cabbage and Brussels sprouts. In the mouth, enzymes from these vegetables and from bacteria in saliva can produce unpleasant, sulfurous odors. Now, researchers have found that levels of these volatile compounds are similar in parent-child pairs, suggesting shared oral microbiomes. They also found that high levels cause children to dislike the vegetables.

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Levodopa, or L-dopa, is considered the most effective treatment for Parkinson's disease today. After a few years of treatment, however, almost all patients develop a debilitating side-effect called L-dopa induced dyskinesia, or LID, which causes involuntary movements in the limbs, face, and torso. Deep brain stimulation can alleviate LID, but the procedure is highly invasive and not all patients are eligible.

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Microplastics -- tiny plastic pieces less than 5 mm in size -- are everywhere, from indoor dust to food to bottled water. So it's not surprising that scientists have detected these particles in the feces of people and pets. Now, in a small pilot study, researchers have discovered that infants have higher amounts of one type of microplastic in their stool than adults. Health effects, if any, are uncertain.

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Social inequality can incite collective violence in an experimental setting, finds a new study.

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Researchers have found that older adults may benefit from a specific diet called the MIND diet even when they develop these protein deposits, known as amyloid plaques and tangles.

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